5 officers hurt in explosion during training exercise at SCI Phoenix

Officials say as many as five law enforcement agents were hurt when an explosive device unexpectedly detonated during a training exercise at a Montgomery County prison.

Several emergency vehicles, including at least two fire trucks, swarmed a large field near SCI - Phoenix in Skippack Township just after 11 a.m. Thursday.

A spokesperson from the Federal Bureau of Investigation (FBI) said three members of the Montgomery County Sherif's Office, a Pennsylvania State Trooper, and an FBI agent were hurt in the blast.

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Officials said in a Friday afternoon update that the injuries are not life-threatening, but they "vary and some are significant." 

The Montgomery County Sheriff's office named Cpl. Ryan Volk, Cpl. Tim Metz and Cpl. Andrew Noto as the officers injured in the blast. Metz and Noto were treated and released from Paoli Hospital and Volk is still undergoing treatment at Penn Presbyterian.

"While none of our deputies appear to have sustained life-threatening injuries at this time. one of our deputies sustained serious injuries," a spokesperson said.

Authorities have launched a join investigation into what caused the unexpected detonation.